Piezoelectric energy harvesting for self‐powered wearable upper limb applications

Nano Select

卷:2

Miah Abdul Halim¹  Yuchi Liu²  Andrew Feeney²  Hadi Heidari²  Rami Ghannam²  Hamideh Khanbareh³  Xiaosheng Zhang⁴ 

[1] Electrical and Computer Engineering University of Florida Gainesville Florida 32611 USA;

[2] James Watt School of Engineering University of Glasgow Glasgow G12 8QQ UK;

[3] Materials and Structures Centre Mechanical Engineering University of Bath Bath BA2 7AY UK;

[4] School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu 611731 China;

关键词: piezoelectric energy harvesting;    upper limbs;    wearable devices;   

DOI  :  10.1002/nano.202000242

来源: DOAJ

【 摘 要 】

Abstract Wearable devices can be used for monitoring vital physical and physiological signs remotely, as well as for interacting with computers. Widespread adoption of wearables is somewhat hindered by the duration time they can be used without re‐recharging. To ensure uninterrupted operation, these devices need a constant and battery‐less energy supply. Scavenging energy from the wearable's surroundings is, therefore, an essential step towards achieving genuinely autonomous and self‐powered devices. While energy harvesting technologies may not completely eliminate the battery storage unit, they can ensure a maximum duration of use. Piezoelectric energy harvesting is a promising and efficient technique to generate electricity for powering wearable devices in response to body movements. Consequently, we systematically survey the range of technologies used for scavenging energy from the human body, with a particular focus on the upper‐limb area. According to our review and in comparison to other upper limb locations, highest power densities can be achieved from piezoelectric transducers located on the wrist. For short and fast battery charging needs, we therefore review the range of materials, architectures and devices used to scavenge energy from these upper‐limb areas. We provide comparisons as well as recommendations and possible future directions for harvesting energy using this promising technique.

【 授权许可】

Unknown